5726809 has 24 divisors (see below), whose sum is σ = 6894720. Its totient is φ = 4736160.

The previous prime is 5726803. The next prime is 5726813. The reversal of 5726809 is 9086275.

5726809 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5726809 - 2¹⁹ = 5202521 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5726803) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108027 + ... + 108079.

It is an arithmetic number, because the mean of its divisors is an integer number (287280).

Almost surely, 2^5726809 is an apocalyptic number.

It is an amenable number.

5726809 is a deficient number, since it is larger than the sum of its proper divisors (1167911).

5726809 is a wasteful number, since it uses less digits than its factorization.

5726809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 5726809 is about 2393.0752182077. The cubic root of 5726809 is about 178.9112155020.

It can be divided in two parts, 572 and 6809, that added together give a triangular number (7381 = T₁₂₁).

The spelling of 5726809 in words is "five million, seven hundred twenty-six thousand, eight hundred nine".